You may find "The Language of Depression" here, though there is excerpt below as well, because no excerpt just doesn't seem right.
“'Sad” is a word that has lost it’s meaning. It is a depressive “cute.” Its connotations have morphed into a childish descriptor. But how do I say that I am tired of feeling this way all the time, because the meaning of “depressed” has changed as well. It is a catch-all, a fishing net ten times the size of the boat. “When I was first aware that I had been laid low by the disease,” William Styron writes in Darkness Visible, “I felt a need, among other things, to register a strong protest against the word ‘depression.’
"I don’t have the words to both illustrate how I feel and assuage the concerns of those around me. Maybe those words don’t exist."